Pittsburgh Public Schools spokeswoman Ebony Pugh said the accident happened about 4 p.m. Wednesday as the bus was pulling out of the Barack Obama Academy of International Studies in East Liberty.

"For their heads to get hit, they were either way too far out the window, or (the bus driver) drove too close to the pole. And that's very dangerous," said Kathleen Kelly, who lives near the school. "I mean, they could get their arms broken or maybe ripped off."

Pugh said there is no evidence the driver was speeding. Several students were believed to have been hanging out of the window, although only two were hurt. The age of the girls and their injuries weren't immediately known.

Paramedics took one girl to Children's Hospital of Pittsburgh of UPMC, and a teacher drove the second girl there.

The school district plans to send a letter home to parents about the incident on Thursday.

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